.\"	$OpenBSD: kvm_getloadavg.3,v 1.11 2013/06/05 03:40:26 tedu Exp $
.\"	$NetBSD: kvm_getloadavg.3,v 1.2 1996/03/18 22:33:26 thorpej Exp $
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.\"     @(#)kvm_getloadavg.3	8.1 (Berkeley) 6/4/93
.\"
.Dd $Mdocdate: June 5 2013 $
.Dt KVM_GETLOADAVG 3
.Os
.Sh NAME
.Nm kvm_getloadavg
.Nd get load average of the system
.Sh SYNOPSIS
.In sys/resource.h
.In kvm.h
.Ft int
.Fn kvm_getloadavg "kvm_t *kd" "double loadavg[]" "int nelem"
.Sh DESCRIPTION
The
.Fn kvm_getloadavg
function returns the number of processes in the system run queue
of the kernel indicated by
.Fa kd ,
averaged over various periods of time.
Up to
.Fa nelem
samples are retrieved and assigned to successive elements of
.Fa loadavg Ns Bq .
The system imposes a maximum of 3 samples, representing averages
over the last 1, 5, and 15 minutes, respectively.
.Sh RETURN VALUES
If the load average was unobtainable, \-1 is returned.
Otherwise, the number of samples actually retrieved is returned.
.Sh SEE ALSO
.Xr uptime 1 ,
.Xr getloadavg 3 ,
.Xr kvm 3
